Crate vaultrs

source · [−]

Expand description

vaultrs

An asynchronous Rust client library for the Hashicorp Vault API

The following backends are currently supported:

Auth
- AppleRole
- JWT/OIDC
- Token
- Userpass
Secrets
- Databases
- KV v2
- PKI
- SSH
Sys
- Health
- Policies
- Sealing
- Wrapping

See something missing? Open an issue.

Installation

Add vaultrs as a dependency to your cargo.toml:

[dependencies]
vaultrs = "0.6.2"

The client is used to configure the connection to Vault and is required to be passed to all API calls for execution. Behind the scenes it uses an asynchronous client from Reqwest for communicating to Vault.

use vaultrs::client::{Client, VaultClient, VaultClientSettingsBuilder};

// Create a client
let mut client = VaultClient::new(
    VaultClientSettingsBuilder::default()
        .address("https://127.0.0.1:8200")
        .token("TOKEN")
        .build()
        .unwrap()
).unwrap();

Secrets

The library currently supports all operations available for version 2 of the key/value store.

use serde::{Deserialize, Serialize};
use vaultrs::kv2;

// Create and read secrets
#[derive(Debug, Deserialize, Serialize)]
struct MySecret {
    key: String,
    password: String,
}

let secret = MySecret {
    key: "super".to_string(),
    password: "secret".to_string(),
};
kv2::set(
    &client,
    "secret",
    "mysecret",
    &secret,
).await;

let secret: MySecret = kv2::read(&client, "secret", "mysecret").await.unwrap();
println!("{}", secret.password) // "secret"

PKI

The library currently supports all operations available for the PKI secrets engine.

use vaultrs::api::pki::requests::GenerateCertificateRequest;
use vaultrs::pki::cert;

// Generate a certificate using the PKI backend
let cert = cert::generate(
    &client,
    "pki",
    "my_role",
    Some(GenerateCertificateRequest::builder().common_name("test.com")),
).await.unwrap();
println!("{}", cert.certificate) // "{PEM encoded certificate}"

Wrapping

All requests implement the ability to be wrapped. These can be passed in your application internally before being unwrapped.

use vaultrs::api::ResponseWrapper;
use vaultrs::api::sys::requests::ListMountsRequest;

let endpoint = ListMountsRequest::builder().build().unwrap();
let wrap_resp = endpoint.wrap(&client).await; // Wrapped response
assert!(wrap_resp.is_ok());

let wrap_resp = wrap_resp.unwrap(); // Unwrap Result<>
let info = wrap_resp.lookup(&client).await; // Check status of this wrapped response
assert!(info.is_ok());

let unwrap_resp = wrap_resp.unwrap(&client).await; // Unwrap the response
assert!(unwrap_resp.is_ok());

let info = wrap_resp.lookup(&client).await; // Error: response already unwrapped
assert!(info.is_err());

Error Handling

All errors generated by this crate are wrapped in the ClientError enum provided by the crate. API warnings are automatically captured via log and API errors are captured and returned as their own variant. Connection related errors from rusify are wrapped and returned as a single variant.

Testing

See the the tests directory for tests. Run tests with cargo test.

Note: All tests rely on bringing up a local Vault development server using Docker. In order to run tests Docker must be running locally (Docker Desktop works).